Only late-stage human trials can show that a vaccine is both safe and effective.
Source: https://www.livescience.com/russian-covid19-vaccine-sputnik-v-approved.html
Only the Autodidact is Free
Only late-stage human trials can show that a vaccine is both safe and effective.
Source: https://www.livescience.com/russian-covid19-vaccine-sputnik-v-approved.html